It seems like you're looking for a laptop charger for an HP laptop with a blue pin, and it needs to be 19.5V and 4.62A. Here's what you should look for when purchasing a replacement:

Key Specifications:

1. Voltage: 19.5V (make sure this matches exactly with your current charger or the specifications for your laptop).
2. Current (Amperage): 4.62A (the charger must provide the same amperage or more, but not less, for safe operation).
3. Connector: Blue pin (HP chargers typically use a specific connector with a blue tip, so check the size and shape of the pin).
4. Wattage: You can calculate the wattage using the formula: $$\text{Wattage} = \text{Voltage} \times \text{Current}$$ So for your case: $$19.5V \times 4.62A = 90.3W$$ Ensure that the charger is rated for at least 90W.